...A driveshaft failure would have produced a lot of yaw - of which there is none in the video - and a harder impact.
Maybe the driver was like Fangio on the pedals and reacted instantly to keep it straight. Dunno I've never been in the 412 simulator to give me a better educated guess of what happened. If it was an old heavy -SP or -HP with a tank of gas he would have run out of oompf OEI, but if it was an -EP I find it hard to believe that 1133 horses from one good engine wouldn't keep him from dunking it.